On Tue, 13 Aug 2002, Orm Finnendahl wrote:
Hello G�nter,
Am Dienstag, den 13. August 2002 um 11:15:58 Uhr (+0200) schrieb g�nter geiger:
On Tue, 13 Aug 2002, Orm Finnendahl wrote:
I got the new RME card and since jack doesnt't work properly on my laptop,
What kind of problems do you have ?
I get nasty xruns everytime, my system accesses the disk (appr. every 3-4 secs). I posted this to the jackit-dev list and Paul Davis replied stating that jack is intended as professional (sic!) solution with very low latency, that he's using SCSI therefore and he didn't seem to care a lot. BTW: Increasing the period size doesn't help. I'll give it another try with a low latency patch applied to my system (Debian with 2.4.18). Maybe that fixes it. But for installations or concert situations I need a reliable system which works unattended for days and therefore prefer the direct way, where pd just grabs the driver.
Yes, you are definitely right, for concert situations and installations it is the more reliable solution.
I have heard from several sources already about the problems they have with jack, others OTOH say it works perfectly, I think that there is a bit of voodoo involved in that :).
The ALSA code in pd is just missing the direct way, that is, sending non-interleaved samples.
Are you sure, ALSA can handle this? I thought, ALSA doesn't work with uninterleaved samples. If that's the case, I'd much prefer the direct way of course.
Who can help in that respect? ALSA documentation is still hardly more than nonexistent and the API far from straightforward.
Someone with enough time, programming experience and the ultimate goal to save the (musicians) world with free software :) No, honestly, I have looked at the code a bit already, then I got stuck because it is a bit a try and error sort of programming. Now currently my desktop machine which hosts the Hammerfall is broken :(.
I think alsa offers now two different "write" and "read" functions, one for interleaved and anotherone for non-interleaved.
Guenter